We can produce the NdFeB ring magnets in different sizes&comma; different grades &lpar;strengths and temperature ratings&rpar;&comma; different coatings and in axial or diametric magnetization&period; There exits two styles "pure" rings and "countersunk" rings&period; The holes are centrally located&period; The countersunk ring allowsfor the magnet to be screwed onto another item&period;Due to their shape&comma; the ring magnets have a higher permeance coefficient than the same size disc magnet&period; This means they can resist demagnetization better&comma; making them ideal for repulsive applications&period;